EP 1795708 B1 20140226 - Shrouded turbofan bleed duct
Title (en)
Shrouded turbofan bleed duct
Title (de)
Zapfluftleitung eines Turbofantriebwerks
Title (fr)
Conduite de purge d'air pressurisée d'un turboréacteur
Publication
Application
Priority
US 29769805 A 20051208
Abstract (en)
[origin: EP1795708A2] A bleed duct (42) is configured for bleeding fan air from the fan bypass duct (32) in a turbofan aircraft engine (10). The bleed duct (42) includes a tubular conduit (48) having an inlet (50) and outlet (52) at opposite ends. The conduit (48) is configured in flow area for recovering pressure from speeding fan air bled therethrough. A shroud (60,68,70,72,74) extends forwardly from the duct inlet (50) for suppressing dynamic pressure oscillations inside the conduit (48) without degrading the pressure recovery.
IPC 8 full level
F01D 9/06 (2006.01); F02C 6/08 (2006.01); F02C 7/32 (2006.01); F02C 9/18 (2006.01); F02K 3/06 (2006.01)
CPC (source: EP US)
F02C 6/08 (2013.01 - EP US); F02C 7/32 (2013.01 - EP US); F02K 3/06 (2013.01 - EP US); F28F 27/02 (2013.01 - EP US); F28D 2021/0021 (2013.01 - EP US); F28F 2250/106 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
EP 1795708 A2 20070613; EP 1795708 A3 20121205; EP 1795708 B1 20140226; CA 2570604 A1 20070608; CA 2570604 C 20140909; CN 101025117 A 20070829; CN 101025117 B 20110907; JP 2007154901 A 20070621; JP 4815335 B2 20111116; US 2007130912 A1 20070614; US 7607308 B2 20091027
DOCDB simple family (application)
EP 06125745 A 20061208; CA 2570604 A 20061208; CN 200610064085 A 20061208; JP 2006332427 A 20061208; US 29769805 A 20051208